4101 has a strong ability to kill mold, wide range of use, anti-mold effect is significantly better than the traditional anti-mold agent, is the polymer materials, leather, artificial leather and microfiber anti-mold agent of the new generation of products. It can also be widely used in emulsions, coatings. Paint, lubricant, shoe oil, bamboo and wood products and cultural relics protection and many other products of anti-mildew.
Zhang Dongyang et al. sprayed the dried test plate with water for 96 hours, cultured it at 30°C for 5 days, measured the zone of inhibition, evaluated the antifungal properties according to the size of the zone of inhibition, and screened antifungal agents.
Antifungal and antifungal aging can also be measured by long-term natural exposure [252, but the test cycle is relatively long. Colon [26. et al. believes that laboratory tests can only be used for screening products, pp wax technology and long-term natural exposure is closer to actual use results. They use five different antifungal agents, namely Polyphase 663, 4.5-dichloro-2-n-octyl-4-isoazolin-3-one (DCO IT), tetrachloroisophthalonitrile (CLT), 2-n-octyl-4-isothiazolin-3-one (O IT) and zinc pyrithione (ZPT). These five antifungal agents all use three different dosages, namely high, medium and low dosages. In Florida, New Jersey and Oregon, the exposure was 31 months, 28 months and 26 months respectively. They found that the results were very different, and the reason was that the molds and algae were different from place to place. In addition, the laboratory test results of zinc pyrithione are very good, but the results of exposure in the three places are the worst among the five. Therefore, they came to the following conclusion: It is sometimes problematic to judge the antifungal properties and antifungal (anti-algae) timeliness of antifungal agents only based on the results of laboratory tests or the results of natural exposure in a certain place.
ASTM D 5589-1997 (2002) “Determination of Algae Resistance of Coatings and Related Coatings” [27l test uses algae as shown in Table 10-15, culture number under 25℃±2℃, RH≥85% and continuous fluorescent lamp irradiation Weekly, according to the condition of algae, it can be graded as 0, 1, 2, 3, 4 to indicate the anti-algae performance.
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